The Melting Spirit Gu Worm ranks third among the Ten Great Poisonous Gus.

According to the information Yu Xian obtained from the Kirin's database, the most terrifying aspect of this Gu Worm is that the more numerous they are, the higher their temperature becomes.

If there is only one Melting Spirit Gu Worm, it can only emit 100 degrees of heat. When there are two, the temperature of both Melting Spirit Gu Worms will rise together to 200 degrees. When there are three Melting Spirit Gu Worms, their temperature will collectively increase to 300 degrees.

Ten Melting Spirit Gu Worms can already emit a high temperature of 1000 degrees, a hundred would be 10,000 degrees, and a thousand would be 100,000 degrees.

If there were truly 200,000 Melting Spirit Gu Worms here, their collective temperature would be 20 million degrees!

Of course, the above is purely theoretical; in reality, the Melting Spirit Gu Worm cannot emit such high temperatures because each Melting Spirit Gu Worm has a limited sensing distance.

Assuming the Melting Spirit Gu Worms are close together, a Melting Spirit Gu Worm in the center can only sense the presence of ninety-nine surrounding Melting Spirit Gu Worms. Anything further is beyond the Melting Spirit Gu Worm's sensing range, so the actual temperature limit of the Melting Spirit Gu Worm is 10,000 degrees.

Although it's not as exaggerated as the theoretical 20 million degrees, this is already roughly twice the surface temperature of the Sun, so you can imagine how terrifying it is.

In fact, the moment the Melting Spirit Gu Worms lit up with red light, the temperature of the entire large pit rapidly increased.

Wherever the Melting Spirit Gu Worms passed, the ground turned into magma one after another. So, while Yu Xian saw the Melting Spirit Gu Worms resembling magma, they were actually accompanied by a large amount of real magma.

However, Yu Xian was sitting inside the bubble and didn't feel hot at all; the high temperature outside had nothing to do with him.

The spatial nature of the spatial bubble determined that it would not be affected by external temperature. No matter how hot or cold it was outside, it couldn't be transmitted inside the bubble. This was a basic characteristic that the spatial bubble possessed from the very beginning.

The reason Yu Xian ran away was actually fear of being besieged by a large number of Melting Spirit Gu Worms. Although the Melting Spirit Gu Worm's strongest point is their high temperature, their own hardness is also very high. Ordinary armor-piercing rounds cannot penetrate their shells, and at the same time, their food is the feces of Waste Rock Gu Insect.

Here, it must be explained that the Waste Rock Gu Insect is a type of Gu Worm that feeds on rocks.

After eating rocks, they excrete feces that are harder than diamonds. This feces has extremely high strategic value, and the city walls of some early cities were built by piling up this feces.

To sound better, the extraordinary gave this feces a less disgusting name: arid stone.

In the extraordinary world, there are not many creatures that can destroy arid stone, and the Melting Spirit Gu Worm happens to have teeth strong enough to bite through this arid stone. Therefore, even without the high-temperature attribute, when the number of Melting Spirit Gu Worms reaches a certain level, they are still a very terrifying existence.

At this moment, Yu Xian descended all the way, the red light emitted by the Melting Spirit Gu Worms behind him illuminating the entire passage. Many strange creatures on the rock walls sensed the high temperature approaching and displayed their abilities one after another.

There were insects shaped like ants quickly crawling down the rock wall, their speed actually keeping up with Yu Xian. There were also rats with drills on their heads quickly drilling holes to escape.

And the black melon seed beetles that Yu Xian had seen before gathered densely together, forming a large black ball that rolled rapidly down the rock wall.

Yu Xian watched the increasing number of creatures around him with surprise and used his phone to photograph all of them.

On the other side, Zhang Shou and the others were all stunned. Who would have thought that there were so many creatures underground on Mars now? It was clear that they had formed a perfect ecological community, and the food chain could ensure that all creatures continued to thrive.

Suddenly, a human skeleton embedded in the rock wall flashed across the screen, and then as Yu Xian continued to fall, more and more skeletons appeared on the screen.

These skeletons died in various ways; some had huge bones, some had delicate bones. Through the actions of some skeletons before death, it could be seen that they were desperately climbing upwards while alive, seemingly trying to escape some danger.

Codename Death Doctor: Xian Yu, how about we retreat? This place feels a bit off.

Codename First: The Death Doctor is right. This place has Shadow Gu, Melting Spirit Gu Worms, and now so many skeletons. There's definitely something wrong.

Yu Xian had been watching his phone with an eyeball bubble. Seeing the two of them worried about him, he smiled and said, "Don't worry, if I really feel danger, I will decisively run away. It's far from that point yet."

He was inside the spatial bubble, and retreating was just a thought away, so he didn't really feel much danger.

Now he was more curious about what exactly happened here to have so many skeletons.

Ten minutes later, the bottom of the cave was illuminated by red light.

There were nearly two hundred skeletons lying on the ground in various postures. Just by looking at their movements, one could imagine that a brutal bloody battle had taken place here.

Codename Fairy: Looks like they fought over the spoils and had an internal conflict.

Codename Fat Cat: Gold diggers are originally desperate people. It's not hard to understand an internal conflict when they dare to come to Mars to dig for gold.

The reason the two made this judgment was because there were still some tattered pieces of fabric on these skeletons. From the fabric, it could be seen that these people should have been wearing unified uniforms.

Yu Xian landed at the bottom of the cave at this time and immediately looked to his right. There was another passage here that led somewhere unknown.

He immediately controlled the bubble to enter the passage. Twenty seconds later, the Melting Spirit Gu Worms fell along with the magma, and a large number of Martian creatures that didn't have time to escape into the passage died in the magma.

The Melting Spirit Gu Worms pursued into the passage. Next, both sides rapidly advanced in the passage, which was interconnected and had a large number of branching paths.

Suddenly, a light flashed in Yu Xian's eyes. He immediately stretched his hand out of the bubble and scooped at the cave wall. Amidst the flying dust, a coral-shaped gold nugget was grasped in his hand. He smiled at his phone and said, "Guess how much this is worth?"

Codename Death Doctor: Holy crap, there's really gold!

Codename First: You're really crazy. Do you want money more than your life?

Codename Popular Science: The gold nugget in your hand has a very good shape. Based on the current market price of gold, plus the artistic premium, it should be able to sell for four or five small targets.

Codename Fairy: Xian Yu little brother, do you want to go on a date? What older sister likes most are younger little brothers.

Codename Piggy: The old witch is going to make a move on Xian Yu, Xian Yu, run!!!

...

...

Yu Xian didn't pay attention to everyone's words. He put away the gold nugget and continued to observe his surroundings.

He had originally given up on the idea of digging for gold. Who knew that when the mountains and rivers were in doubt and there seemed to be no road, a village appeared out of the willow shade and bright flowers? He had unexpectedly stumbled upon gold again.

And such obvious gold nuggets were left here, perhaps there was more gold in this place.

Next, he rushed through the interconnected passages. In the process of advancing, he really did find quite a bit of gold, both large and small. The smallest gold was about the size of a soybean, and the largest gold was the size of a car wheel.

Such a large piece of gold made everyone who was watching jealous. This wasn't digging for gold, it was completely picking up money.

However, everyone quickly discovered that Yu Xian had entered a dead end; there was no path ahead in the passage.

Codename Fat Cat: Alright, the game is over.

Codename Death Doctor: Xian Yu, it's time to retreat. You've already made a fortune this time, there's no need to take any more risks.

Codename Piggy: That's right, safety is the most important thing.

...

...

Yu Xian looked at everyone's comments. Instead of rushing to run, he calmly looked behind him.

Behind, a large number of Melting Spirit Gu Worms surged like magma, the temperature rapidly rising, and the surrounding soil and rocks began to melt and smoke one after another.

"It's really beautiful, but unfortunately, I don't know how to control it."

He admired the Melting Spirit Gu Worms and sighed to the people on the other side of the phone.

Under everyone's anxious urging, in the last second before the Melting Spirit Gu Worms approached, he had a thought, and his person instantly transferred to another bubble, continuing to advance along the passage.

Every time he passed a fork in the road just now, he would split off a bubble to enter the fork and control it to continue advancing along the passage.

When the passage he chose was impassable, he could teleport to another bubble at any time and continue exploring. Mere Melting Spirit Gu Worms could not pose any threat to him.

Zhang Shou and the others were all speechless when they saw this scene. No wonder Yu Xian was so calm; he had already prepared a retreat.

Codename Seventeen: Space ability users are great, so free.

Codename Death Doctor: Space ability users are great, so free + 1.

Codename Piggy: Space ability users are great, so free + 1.

Codename Fairy: Space ability users are great, so free + 1.

Codename Fat Cat: Strongly interrupt!

...

...

Under everyone's envious gaze, Yu Xian continued to collect gold all the way, advancing towards the unknown front.